This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1000S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI80 Standard Air Cylinder SI80X1000S
The AirTAC SI80 Standard Air Cylinder SI80X1000S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1000mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1000S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1000 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X1000S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI80 Standard Air Cylinder SI80X1000S
The AirTAC SI80X1000S is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, delivering 2513 N push force at 0.5 MPa through its 80 mm bore. AirTAC replaced this legacy unit with the SAI80X1000S, a direct upgrade retaining the exact 1000 mm stroke, G3/8 port, M20x1.5 rod thread, and ISO 15552 mounting interface. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B sensors. For load holding, note that a plain cylinder drifts on air loss; the cushion only decelerates near stroke end. Use the SAIL or BSAI lock variants, or an external pilot check valve, to hold loads securely.
The SAI family also introduces variants the SI line lacked, such as the SAIF (built-in 4M valve for bores 32-100) and BSAI (clamp-lock). Operating pressure spans 0.15-1.0 MPa, with seal options including standard NBR, TPU, and Viton H for high-temperature environments up to 150 C.
Airtac SI80 Standard Air Cylinder SI80X1000S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1000S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1000S |
| Bore size | Ø80 mm |
| Stroke | 1000 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI80X1000S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80X1000S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80X1000S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1000 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI80 Standard Air Cylinder SI80X1000S Is Used
Long-Stroke Material Transfer
Pushes heavy pallets or workpieces across a 1-meter conveyor lane using 2513 N of thrust at 0.5 MPa, requiring external guides to prevent rod bending over the extended travel.
Large Press Ejection
Ejects molded or stamped parts from heavy machinery, utilizing the adjustable 36 mm air cushions at both ends to safely decelerate the 25 mm rod at high cycling speeds.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1000S with the SAI80X1000S
To replace the discontinued SI80X1000S, order the SAI80X1000S direct equivalent. Confirm the ISO 15552 mounting interface, 80 mm bore, 1000 mm stroke, G3/8 port (PT/G/NPT thread options), and your specific mounting accessory (LB, FA, CA, TC, etc.). The -S magnet is present for position sensing. When sizing both ways, a neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N. At 0.7 MPa, this 80 mm bore generates 3518 N. Because the 1000 mm stroke is long, prevent rod bending and side-load damage by using an external guide to support the load. Remember that a standard cylinder does not hold load without live air; the cushion only decelerates. For secure holding, select the SAIL (air-released lock) or BSAI (clamp-lock) variant, or install an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1000S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80X1000S FAQ
Yes, the SI80X1000S is discontinued. The direct replacement is the AirTAC SAI80X1000S. It is dimensionally interchangeable per the ISO 15552 mounting interface, offering the same 80 mm bore, 1000 mm stroke, output force, G3/8 port, and mounting compatibility. You simply order the SAI80X1000S for your existing fixtures.
The bore features a G3/8 air port and an M20x1.5 rod thread. At 0.5 MPa it provides 2513 N push and 2268 pull force. At 0.7 MPa the push force is 3518 N, and at 0.9 MPa it is 4523 N. The theoretical maximum force is 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X1000S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1000S replacement — usually within 7-8 hours.